Kia rio wont crank wont start? click noise from engine fuse box

Hi thanks for the reply . I took the car's battery to the shop and they checked and told me it was good . I went to few of the mechanics but most of them guessed some of them said starter could be bad some said issue could be with the key etc. but when i told them that car would turn over when the specific fuse is removed , they seemed confused . One of the mechanic said the problem seems to be with the ECM and he suggested replacing whole module which costs almost 1000$ so I'm confused if i should get it replaced or not. Btw the interior system of the car works perfectly e.g radio locks etc.